STV2246H STMicroelectronics, STV2246H Datasheet - Page 30

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

4.4.12 AM Demodulator
4.4.13 SIF Output (AM/FM or Sound Subcarriers Output)
4.4.14 SAW Filter Switch Output (TQFP64 only)
4.4.15 External Audio Input
4.4.16 Main Audio Output
(See
AMhighco High Cut-off Frequency
SAW high
SIF dcout DC Output Level
AMlowco
SAW low
THD_AM Total Harmonic Distortion
Symbol
Symbol
Symbol
SAWcur
Symbol
Symbol
AFOUT
AFDIFF
SIFout
SIFres
SIFcur
AMthd
AMs/n
AMsvr
SIFbw
ASTEP
DCSH
AFIN
AMax
V
V
R
BWO
AMin
R
IDC
ODC
OUT
IN
Figure 17 on page 42
AM Audio Output Amplitude at AM/
FMOUT Pin
Low Cut-off Frequency
Total Harmonic Distortion
Signal/Noise Ratio
Supply Voltage Rejection
Output Level
Bandwidth
Residual Carrier
Low Output Voltage
Maximum allowed Current
Input Resistance
DC Input Voltage
maximum Audio Input Signal
Maximum Attenuation (Audio Out/
AM-FM Out)
Minimum Attenuation (Audio Out/
AM-FM Out)
Step Resolution
DC Output Shift
DC Output Level
Audio Amplitude difference
between sources
Output Resistance
Output Bandwidth
Sink Output Current
High Output Voltage
Parameter
Parameter
Parameter
Parameter
Parameter
STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS
and
Figure 18 on page
Register 05hex, data = 7Fhex
V
Register 05hex, data = 00hex
reg 05, d7 = 0
From max. volume to min. volume
f = 1 kHz, f
Ext. Audio Input = 500 mV
V
54% modulation
-3 dB compared AFout
54% modulation
Weighted according to CCIR468-4
Quasi-Peak
See Note 4
Sound subcarriers
Sound subcarriers
Fundamental wave (38.9 MHz) and
harmonics
AM or FM demod. output selected
Sound subcarriers output selected
I
I
-3 dB compared AFout
SINK
SOURCE
IN
IN
= 1 V
= 1 V
= 2 mA
42)
RMS,
RMS,
= 2 mA
Test Conditions
Test Conditions
Test Conditions
Test Conditions
Test Conditions
M
= ±27 kHz,
f = 1 kHz,
f = 1 kHz
RMS
Min.
Min.
Min.
Min.
400
Min.
7.5
30
70
4
2
-1
1
Typ.
Typ.
Typ.
Typ
500
150
100
Typ.
0.4
0.5
1.5
2.4
55
20
110
4
0.7
0.1
78
0
4
Max.
Max.
Max.
Max.
Max.
630
130
0.4
40
2
2
0.3
50
1
2
mV
mV
mV
V
MHz
Unit
Unit
Unit
Unit
Unit
kHz
mA
mA
MHz
kΩ
Hz
dB
dB
RMS
%
mV
30/86
V
V
V
V
dB
dB
dB
dB
RMS
RMS
RMS
%
Ω
V